BC New Construction Leak Detection: Quality Assurance for New Buildings
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Construction6 min readLast updated: 2026-07-27

BC New Construction Leak Detection: Quality Assurance for New Buildings

Guide for BC builders on leak detection during construction and warranty defect investigation.

New buildings can develop leaks from installation errors, material defects, and design issues. Detection during construction and warranty period identifies issues before they become major problems.

Pre-drywall inspection is valuable quality assurance. Before drywall is installed, plumbing and envelope systems are accessible. A pre-drywall survey identifies issues while still visible and accessible.

Warranty defect investigation for new homes. BC's 2-5-10 warranty covers envelope defects. Professional detection provides objective evidence for warranty claims, identifying whether issues are covered defects or maintenance-related.

New roof detection is a common warranty issue. Flat roofs can develop membrane defects and drainage problems within the first few years. Drone thermal inspection surveys new roofs comprehensively before warranty expires.

Underground utility verification for new developments. Before landscaping, utility lines and drainage should be tested. CCTV inspection of new drain lines verifies proper installation and identifies damage from backfilling.

LeakInspections.ca — a division of Anyleak.ca and Leak.ca. Call 604-239-9934.

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LeakInspections.ca — a division of Anyleak.ca and Leak.ca — serves all of British Columbia with non-invasive leak detection since 1999.